Lines Matching full:rs
234 static inline void spi_enable_chip(struct rockchip_spi *rs, bool enable) in spi_enable_chip() argument
236 writel_relaxed((enable ? 1U : 0U), rs->regs + ROCKCHIP_SPI_SSIENR); in spi_enable_chip()
239 static inline void wait_for_tx_idle(struct rockchip_spi *rs, bool slave_mode) in wait_for_tx_idle() argument
246 if (slave_mode && rs->version == ROCKCHIP_SPI_VER2_TYPE2) { in wait_for_tx_idle()
255 if ((readl_relaxed(rs->regs + ROCKCHIP_SPI_SR) & bit_filed) == idle_val) { in wait_for_tx_idle()
257 speed = rs->speed_hz; in wait_for_tx_idle()
265 dev_warn(rs->dev, "spi controller is in busy state!\n"); in wait_for_tx_idle()
268 static u32 get_fifo_len(struct rockchip_spi *rs) in get_fifo_len() argument
270 switch (rs->version) { in get_fifo_len()
282 struct rockchip_spi *rs = spi_controller_get_devdata(ctlr); in rockchip_spi_set_cs() local
286 if (cs_asserted == rs->cs_asserted[spi->chip_select]) in rockchip_spi_set_cs()
291 pm_runtime_get_sync(rs->dev); in rockchip_spi_set_cs()
294 ROCKCHIP_SPI_SET_BITS(rs->regs + ROCKCHIP_SPI_SER, 1); in rockchip_spi_set_cs()
296 ROCKCHIP_SPI_SET_BITS(rs->regs + ROCKCHIP_SPI_SER, BIT(spi->chip_select)); in rockchip_spi_set_cs()
299 ROCKCHIP_SPI_CLR_BITS(rs->regs + ROCKCHIP_SPI_SER, 1); in rockchip_spi_set_cs()
301 ROCKCHIP_SPI_CLR_BITS(rs->regs + ROCKCHIP_SPI_SER, BIT(spi->chip_select)); in rockchip_spi_set_cs()
304 pm_runtime_put(rs->dev); in rockchip_spi_set_cs()
307 rs->cs_asserted[spi->chip_select] = cs_asserted; in rockchip_spi_set_cs()
313 struct rockchip_spi *rs = spi_controller_get_devdata(ctlr); in rockchip_spi_handle_err() local
315 dev_err(rs->dev, "state=%x\n", atomic_read(&rs->state)); in rockchip_spi_handle_err()
316 dev_err(rs->dev, "tx_left=%x\n", rs->tx_left); in rockchip_spi_handle_err()
317 dev_err(rs->dev, "rx_left=%x\n", rs->rx_left); in rockchip_spi_handle_err()
318 print_hex_dump(KERN_ERR, "regs ", DUMP_PREFIX_OFFSET, 4, 4, rs->regs, 0x4c, 0); in rockchip_spi_handle_err()
323 spi_enable_chip(rs, false); in rockchip_spi_handle_err()
326 writel_relaxed(0, rs->regs + ROCKCHIP_SPI_IMR); in rockchip_spi_handle_err()
327 writel_relaxed(0xffffffff, rs->regs + ROCKCHIP_SPI_ICR); in rockchip_spi_handle_err()
329 if (atomic_read(&rs->state) & TXDMA) in rockchip_spi_handle_err()
332 if (atomic_read(&rs->state) & RXDMA) in rockchip_spi_handle_err()
334 atomic_set(&rs->state, 0); in rockchip_spi_handle_err()
337 static void rockchip_spi_pio_writer(struct rockchip_spi *rs) in rockchip_spi_pio_writer() argument
339 u32 tx_free = rs->fifo_len - readl_relaxed(rs->regs + ROCKCHIP_SPI_TXFLR); in rockchip_spi_pio_writer()
340 u32 words = min(rs->tx_left, tx_free); in rockchip_spi_pio_writer()
342 rs->tx_left -= words; in rockchip_spi_pio_writer()
346 if (rs->n_bytes == 1) in rockchip_spi_pio_writer()
347 txw = *(u8 *)rs->tx; in rockchip_spi_pio_writer()
349 txw = *(u16 *)rs->tx; in rockchip_spi_pio_writer()
351 writel_relaxed(txw, rs->regs + ROCKCHIP_SPI_TXDR); in rockchip_spi_pio_writer()
352 rs->tx += rs->n_bytes; in rockchip_spi_pio_writer()
356 static void rockchip_spi_pio_reader(struct rockchip_spi *rs) in rockchip_spi_pio_reader() argument
358 u32 words = readl_relaxed(rs->regs + ROCKCHIP_SPI_RXFLR); in rockchip_spi_pio_reader()
359 u32 rx_left = (rs->rx_left > words) ? rs->rx_left - words : 0; in rockchip_spi_pio_reader()
367 u32 ftl = readl_relaxed(rs->regs + ROCKCHIP_SPI_RXFTLR) + 1; in rockchip_spi_pio_reader()
371 words = rs->rx_left - rx_left; in rockchip_spi_pio_reader()
375 rs->rx_left = rx_left; in rockchip_spi_pio_reader()
377 u32 rxw = readl_relaxed(rs->regs + ROCKCHIP_SPI_RXDR); in rockchip_spi_pio_reader()
379 if (!rs->rx) in rockchip_spi_pio_reader()
382 if (rs->n_bytes == 1) in rockchip_spi_pio_reader()
383 *(u8 *)rs->rx = (u8)rxw; in rockchip_spi_pio_reader()
385 *(u16 *)rs->rx = (u16)rxw; in rockchip_spi_pio_reader()
386 rs->rx += rs->n_bytes; in rockchip_spi_pio_reader()
393 struct rockchip_spi *rs = spi_controller_get_devdata(ctlr); in rockchip_spi_isr() local
396 if (rs->cs_inactive && readl_relaxed(rs->regs + ROCKCHIP_SPI_ISR) & INT_CS_INACTIVE) { in rockchip_spi_isr()
398 writel_relaxed(0, rs->regs + ROCKCHIP_SPI_IMR); in rockchip_spi_isr()
399 writel_relaxed(0xffffffff, rs->regs + ROCKCHIP_SPI_ICR); in rockchip_spi_isr()
404 if (rs->tx_left) in rockchip_spi_isr()
405 rockchip_spi_pio_writer(rs); in rockchip_spi_isr()
407 rockchip_spi_pio_reader(rs); in rockchip_spi_isr()
408 if (!rs->rx_left) { in rockchip_spi_isr()
409 spi_enable_chip(rs, false); in rockchip_spi_isr()
410 writel_relaxed(0, rs->regs + ROCKCHIP_SPI_IMR); in rockchip_spi_isr()
411 writel_relaxed(0xffffffff, rs->regs + ROCKCHIP_SPI_ICR); in rockchip_spi_isr()
412 complete(&rs->xfer_done); in rockchip_spi_isr()
418 static int rockchip_spi_prepare_irq(struct rockchip_spi *rs, in rockchip_spi_prepare_irq() argument
422 rs->tx_left = rs->tx ? xfer->len / rs->n_bytes : 0; in rockchip_spi_prepare_irq()
423 rs->rx_left = xfer->len / rs->n_bytes; in rockchip_spi_prepare_irq()
425 writel_relaxed(0xffffffff, rs->regs + ROCKCHIP_SPI_ICR); in rockchip_spi_prepare_irq()
427 spi_enable_chip(rs, true); in rockchip_spi_prepare_irq()
429 if (rs->tx_left) in rockchip_spi_prepare_irq()
430 rockchip_spi_pio_writer(rs); in rockchip_spi_prepare_irq()
432 if (rs->cs_inactive) in rockchip_spi_prepare_irq()
433 writel_relaxed(INT_RF_FULL | INT_CS_INACTIVE, rs->regs + ROCKCHIP_SPI_IMR); in rockchip_spi_prepare_irq()
435 writel_relaxed(INT_RF_FULL, rs->regs + ROCKCHIP_SPI_IMR); in rockchip_spi_prepare_irq()
444 struct rockchip_spi *rs = spi_controller_get_devdata(ctlr); in rockchip_spi_dma_rxcb() local
445 int state = atomic_fetch_andnot(RXDMA, &rs->state); in rockchip_spi_dma_rxcb()
447 if (state & TXDMA && !rs->slave_aborted) in rockchip_spi_dma_rxcb()
450 if (rs->cs_inactive) in rockchip_spi_dma_rxcb()
451 writel_relaxed(0, rs->regs + ROCKCHIP_SPI_IMR); in rockchip_spi_dma_rxcb()
453 spi_enable_chip(rs, false); in rockchip_spi_dma_rxcb()
454 writel_relaxed(0, rs->regs + ROCKCHIP_SPI_IMR); in rockchip_spi_dma_rxcb()
455 writel_relaxed(0xffffffff, rs->regs + ROCKCHIP_SPI_ICR); in rockchip_spi_dma_rxcb()
456 complete(&rs->xfer_done); in rockchip_spi_dma_rxcb()
462 struct rockchip_spi *rs = spi_controller_get_devdata(ctlr); in rockchip_spi_dma_txcb() local
463 int state = atomic_fetch_andnot(TXDMA, &rs->state); in rockchip_spi_dma_txcb()
465 if (state & RXDMA && !rs->slave_aborted) in rockchip_spi_dma_txcb()
469 wait_for_tx_idle(rs, ctlr->slave); in rockchip_spi_dma_txcb()
471 spi_enable_chip(rs, false); in rockchip_spi_dma_txcb()
472 writel_relaxed(0, rs->regs + ROCKCHIP_SPI_IMR); in rockchip_spi_dma_txcb()
473 writel_relaxed(0xffffffff, rs->regs + ROCKCHIP_SPI_ICR); in rockchip_spi_dma_txcb()
474 complete(&rs->xfer_done); in rockchip_spi_dma_txcb()
490 static int rockchip_spi_prepare_dma(struct rockchip_spi *rs, in rockchip_spi_prepare_dma() argument
495 atomic_set(&rs->state, 0); in rockchip_spi_prepare_dma()
501 .src_addr = rs->dma_addr_rx, in rockchip_spi_prepare_dma()
502 .src_addr_width = rs->n_bytes, in rockchip_spi_prepare_dma()
503 .src_maxburst = rockchip_spi_calc_burst_size(xfer->len / rs->n_bytes), in rockchip_spi_prepare_dma()
523 .dst_addr = rs->dma_addr_tx, in rockchip_spi_prepare_dma()
524 .dst_addr_width = rs->n_bytes, in rockchip_spi_prepare_dma()
525 .dst_maxburst = rs->fifo_len / 4, in rockchip_spi_prepare_dma()
546 atomic_or(RXDMA, &rs->state); in rockchip_spi_prepare_dma()
551 if (rs->cs_inactive) in rockchip_spi_prepare_dma()
552 writel_relaxed(INT_CS_INACTIVE, rs->regs + ROCKCHIP_SPI_IMR); in rockchip_spi_prepare_dma()
554 spi_enable_chip(rs, true); in rockchip_spi_prepare_dma()
557 atomic_or(TXDMA, &rs->state); in rockchip_spi_prepare_dma()
566 static int rockchip_spi_pio_transfer(struct rockchip_spi *rs, in rockchip_spi_pio_transfer() argument
586 rs->tx_left = rs->tx ? xfer->len / rs->n_bytes : 0; in rockchip_spi_pio_transfer()
587 rs->rx_left = rs->rx ? xfer->len / rs->n_bytes : 0; in rockchip_spi_pio_transfer()
589 spi_enable_chip(rs, true); in rockchip_spi_pio_transfer()
591 while (rs->tx_left || rs->rx_left) { in rockchip_spi_pio_transfer()
592 if (rs->tx) in rockchip_spi_pio_transfer()
593 rockchip_spi_pio_writer(rs); in rockchip_spi_pio_transfer()
595 if (rs->rx) in rockchip_spi_pio_transfer()
596 rockchip_spi_pio_reader(rs); in rockchip_spi_pio_transfer()
607 if (rs->tx) in rockchip_spi_pio_transfer()
608 wait_for_tx_idle(rs, ctlr->slave); in rockchip_spi_pio_transfer()
611 spi_enable_chip(rs, false); in rockchip_spi_pio_transfer()
616 static int rockchip_spi_config(struct rockchip_spi *rs, in rockchip_spi_config() argument
629 rs->slave_aborted = false; in rockchip_spi_config()
631 cr0 |= rs->rsd << CR0_RSD_OFFSET; in rockchip_spi_config()
632 cr0 |= rs->csm << CR0_CSM_OFFSET; in rockchip_spi_config()
653 dev_err(rs->dev, "no transmission buffer\n"); in rockchip_spi_config()
675 dev_err(rs->dev, "unknown bits per word: %d\n", in rockchip_spi_config()
691 if (rs->high_speed_state) { in rockchip_spi_config()
692 if (rs->freq > IO_DRIVER_4MA_MAX_SCLK_OUT) in rockchip_spi_config()
693 pinctrl_select_state(rs->dev->pins->p, in rockchip_spi_config()
694 rs->high_speed_state); in rockchip_spi_config()
696 pinctrl_select_state(rs->dev->pins->p, in rockchip_spi_config()
697 rs->dev->pins->default_state); in rockchip_spi_config()
700 writel_relaxed(cr0, rs->regs + ROCKCHIP_SPI_CTRLR0); in rockchip_spi_config()
701 writel_relaxed(cr1, rs->regs + ROCKCHIP_SPI_CTRLR1); in rockchip_spi_config()
707 if ((xfer->len / rs->n_bytes) < rs->fifo_len) in rockchip_spi_config()
708 writel_relaxed(xfer->len / rs->n_bytes - 1, rs->regs + ROCKCHIP_SPI_RXFTLR); in rockchip_spi_config()
710 writel_relaxed(rs->fifo_len / 2 - 1, rs->regs + ROCKCHIP_SPI_RXFTLR); in rockchip_spi_config()
712 writel_relaxed(rs->fifo_len / 2 - 1, rs->regs + ROCKCHIP_SPI_DMATDLR); in rockchip_spi_config()
713 writel_relaxed(rockchip_spi_calc_burst_size(xfer->len / rs->n_bytes) - 1, in rockchip_spi_config()
714 rs->regs + ROCKCHIP_SPI_DMARDLR); in rockchip_spi_config()
715 writel_relaxed(dmacr, rs->regs + ROCKCHIP_SPI_DMACR); in rockchip_spi_config()
717 if (rs->max_baud_div_in_cpha && xfer->speed_hz != rs->speed_hz) { in rockchip_spi_config()
719 if (rs->freq < 2 * xfer->speed_hz) { in rockchip_spi_config()
720 clk_set_rate(rs->spiclk, 2 * xfer->speed_hz); in rockchip_spi_config()
721 rs->freq = clk_get_rate(rs->spiclk); in rockchip_spi_config()
724 …if ((spi->mode & SPI_CPHA) && (DIV_ROUND_UP(rs->freq, xfer->speed_hz) > rs->max_baud_div_in_cpha))… in rockchip_spi_config()
725 clk_set_rate(rs->spiclk, rs->max_baud_div_in_cpha * xfer->speed_hz); in rockchip_spi_config()
726 rs->freq = clk_get_rate(rs->spiclk); in rockchip_spi_config()
734 writel_relaxed(2 * DIV_ROUND_UP(rs->freq, 2 * xfer->speed_hz), in rockchip_spi_config()
735 rs->regs + ROCKCHIP_SPI_BAUDR); in rockchip_spi_config()
736 rs->speed_hz = xfer->speed_hz; in rockchip_spi_config()
748 struct rockchip_spi *rs = spi_controller_get_devdata(ctlr); in rockchip_spi_slave_abort() local
752 rx_fifo_left = readl_relaxed(rs->regs + ROCKCHIP_SPI_RXFLR); in rockchip_spi_slave_abort()
754 readl_relaxed(rs->regs + ROCKCHIP_SPI_RXDR); in rockchip_spi_slave_abort()
756 rs->slave_aborted = true; in rockchip_spi_slave_abort()
757 complete(&rs->xfer_done); in rockchip_spi_slave_abort()
765 struct rockchip_spi *rs = spi_controller_get_devdata(ctlr); in rockchip_spi_transfer_wait() local
770 if (wait_for_completion_interruptible(&rs->xfer_done)) { in rockchip_spi_transfer_wait()
771 dev_dbg(rs->dev, "RK SPI transfer interrupted\n"); in rockchip_spi_transfer_wait()
775 if (rs->slave_aborted) { in rockchip_spi_transfer_wait()
776 dev_err(rs->dev, "RK SPI transfer slave abort\n"); in rockchip_spi_transfer_wait()
790 ms = wait_for_completion_timeout(&rs->xfer_done, in rockchip_spi_transfer_wait()
794 dev_err(rs->dev, "RK SPI transfer timed out\n"); in rockchip_spi_transfer_wait()
807 struct rockchip_spi *rs = spi_controller_get_devdata(ctlr); in rockchip_spi_transfer_one() local
814 complete(&rs->xfer_done); in rockchip_spi_transfer_one()
818 WARN_ON(readl_relaxed(rs->regs + ROCKCHIP_SPI_SSIENR) && in rockchip_spi_transfer_one()
819 (readl_relaxed(rs->regs + ROCKCHIP_SPI_SR) & SR_BUSY)); in rockchip_spi_transfer_one()
822 dev_err(rs->dev, "No buffer for transfer\n"); in rockchip_spi_transfer_one()
827 dev_err(rs->dev, "Transfer is too long (%d)\n", xfer->len); in rockchip_spi_transfer_one()
831 rs->n_bytes = xfer->bits_per_word <= 8 ? 1 : 2; in rockchip_spi_transfer_one()
832 rs->xfer = xfer; in rockchip_spi_transfer_one()
833 if (rs->poll) { in rockchip_spi_transfer_one()
843 ret = rockchip_spi_config(rs, spi, xfer, xfer_mode, ctlr->slave); in rockchip_spi_transfer_one()
847 rs->tx = xfer->tx_buf; in rockchip_spi_transfer_one()
848 rs->rx = xfer->rx_buf; in rockchip_spi_transfer_one()
850 reinit_completion(&rs->xfer_done); in rockchip_spi_transfer_one()
854 ret = rockchip_spi_pio_transfer(rs, ctlr, xfer); in rockchip_spi_transfer_one()
857 ret = rockchip_spi_prepare_dma(rs, ctlr, xfer); in rockchip_spi_transfer_one()
860 ret = rockchip_spi_prepare_irq(rs, ctlr, xfer); in rockchip_spi_transfer_one()
863 if (rs->ready) { in rockchip_spi_transfer_one()
864 gpiod_set_value(rs->ready, 0); in rockchip_spi_transfer_one()
866 gpiod_set_value(rs->ready, 1); in rockchip_spi_transfer_one()
872 if (rs->ready) in rockchip_spi_transfer_one()
873 gpiod_set_value(rs->ready, 0); in rockchip_spi_transfer_one()
882 struct rockchip_spi *rs = spi_controller_get_devdata(ctlr); in rockchip_spi_can_dma() local
889 return xfer->len / bytes_per_word >= rs->fifo_len; in rockchip_spi_can_dma()
894 struct rockchip_spi *rs = spi_controller_get_devdata(spi->controller); in rockchip_spi_setup() local
897 if (!spi->cs_gpiod && (spi->mode & SPI_CS_HIGH) && !rs->cs_high_supported) { in rockchip_spi_setup()
902 pm_runtime_get_sync(rs->dev); in rockchip_spi_setup()
904 cr0 = readl_relaxed(rs->regs + ROCKCHIP_SPI_CTRLR0); in rockchip_spi_setup()
910 writel_relaxed(cr0, rs->regs + ROCKCHIP_SPI_CTRLR0); in rockchip_spi_setup()
912 pm_runtime_put(rs->dev); in rockchip_spi_setup()
921 struct rockchip_spi *rs = spi_controller_get_devdata(ctlr); in rockchip_spi_misc_open() local
923 pm_runtime_get_sync(rs->dev); in rockchip_spi_misc_open()
932 struct rockchip_spi *rs = spi_controller_get_devdata(ctlr); in rockchip_spi_misc_release() local
934 pm_runtime_put(rs->dev); in rockchip_spi_misc_release()
943 struct rockchip_spi *rs = spi_controller_get_devdata(ctlr); in rockchip_spi_mmap() local
957 __phys_to_pfn(rs->base_addr_phy), in rockchip_spi_mmap()
974 struct rockchip_spi *rs; in rockchip_spi_probe() local
997 rs = spi_controller_get_devdata(ctlr); in rockchip_spi_probe()
1002 rs->regs = devm_ioremap_resource(&pdev->dev, mem); in rockchip_spi_probe()
1003 if (IS_ERR(rs->regs)) { in rockchip_spi_probe()
1004 ret = PTR_ERR(rs->regs); in rockchip_spi_probe()
1007 rs->base_addr_phy = mem->start; in rockchip_spi_probe()
1010 rs->apb_pclk = devm_clk_get(&pdev->dev, "apb_pclk"); in rockchip_spi_probe()
1011 if (IS_ERR(rs->apb_pclk)) { in rockchip_spi_probe()
1013 ret = PTR_ERR(rs->apb_pclk); in rockchip_spi_probe()
1018 rs->spiclk = devm_clk_get(&pdev->dev, "spiclk"); in rockchip_spi_probe()
1019 if (IS_ERR(rs->spiclk)) { in rockchip_spi_probe()
1021 ret = PTR_ERR(rs->spiclk); in rockchip_spi_probe()
1025 rs->sclk_in = devm_clk_get_optional(&pdev->dev, "sclk_in"); in rockchip_spi_probe()
1026 if (IS_ERR(rs->sclk_in)) { in rockchip_spi_probe()
1028 ret = PTR_ERR(rs->sclk_in); in rockchip_spi_probe()
1032 ret = clk_prepare_enable(rs->apb_pclk); in rockchip_spi_probe()
1038 ret = clk_prepare_enable(rs->spiclk); in rockchip_spi_probe()
1044 ret = clk_prepare_enable(rs->sclk_in); in rockchip_spi_probe()
1050 spi_enable_chip(rs, false); in rockchip_spi_probe()
1061 rs->dev = &pdev->dev; in rockchip_spi_probe()
1063 rs->freq = clk_get_rate(rs->spiclk); in rockchip_spi_probe()
1064 if (!rs->freq) { in rockchip_spi_probe()
1065 ret = device_property_read_u32(&pdev->dev, "clock-frequency", &rs->freq); in rockchip_spi_probe()
1067 dev_warn(rs->dev, "Failed to get clock or clock-frequency property\n"); in rockchip_spi_probe()
1074 u32 rsd = DIV_ROUND_CLOSEST(rsd_nsecs * (rs->freq >> 8), in rockchip_spi_probe()
1077 dev_warn(rs->dev, "%u Hz are too slow to express %u ns delay\n", in rockchip_spi_probe()
1078 rs->freq, rsd_nsecs); in rockchip_spi_probe()
1081 dev_warn(rs->dev, "%u Hz are too fast to express %u ns delay, clamping at %u ns\n", in rockchip_spi_probe()
1082 rs->freq, rsd_nsecs, in rockchip_spi_probe()
1083 CR0_RSD_MAX * 1000000000U / rs->freq); in rockchip_spi_probe()
1085 rs->rsd = rsd; in rockchip_spi_probe()
1090 dev_warn(rs->dev, "The csm value %u exceeds the limit, clamping at %u\n", in rockchip_spi_probe()
1094 rs->csm = csm; in rockchip_spi_probe()
1097 rs->version = readl_relaxed(rs->regs + ROCKCHIP_SPI_VERSION); in rockchip_spi_probe()
1098 rs->fifo_len = get_fifo_len(rs); in rockchip_spi_probe()
1099 if (!rs->fifo_len) { in rockchip_spi_probe()
1106 rs->max_baud_div_in_cpha = quirks_cfg->max_baud_div_in_cpha; in rockchip_spi_probe()
1131 ctlr->min_speed_hz = rs->freq / BAUDR_SCKDV_MAX; in rockchip_spi_probe()
1132 ctlr->max_speed_hz = min(rs->freq / BAUDR_SCKDV_MIN, MAX_SCLK_OUT); in rockchip_spi_probe()
1140 ctlr->dma_tx = dma_request_chan(rs->dev, "tx"); in rockchip_spi_probe()
1147 dev_warn(rs->dev, "Failed to request TX DMA channel\n"); in rockchip_spi_probe()
1151 ctlr->dma_rx = dma_request_chan(rs->dev, "rx"); in rockchip_spi_probe()
1157 dev_warn(rs->dev, "Failed to request RX DMA channel\n"); in rockchip_spi_probe()
1162 rs->dma_addr_tx = mem->start + ROCKCHIP_SPI_TXDR; in rockchip_spi_probe()
1163 rs->dma_addr_rx = mem->start + ROCKCHIP_SPI_RXDR; in rockchip_spi_probe()
1167 rs->poll = device_property_read_bool(&pdev->dev, "rockchip,poll-only"); in rockchip_spi_probe()
1168 init_completion(&rs->xfer_done); in rockchip_spi_probe()
1169 if (rs->poll && slave_mode) { in rockchip_spi_probe()
1170 dev_err(rs->dev, "only support rockchip,poll-only property in master mode\n"); in rockchip_spi_probe()
1175 switch (rs->version) { in rockchip_spi_probe()
1177 rs->cs_high_supported = true; in rockchip_spi_probe()
1180 rs->cs_inactive = true; in rockchip_spi_probe()
1182 rs->cs_inactive = false; in rockchip_spi_probe()
1185 rs->cs_inactive = false; in rockchip_spi_probe()
1189 rs->cs_inactive = false; in rockchip_spi_probe()
1193 rs->high_speed_state = pinctrl_lookup_state(pinctrl, "high_speed"); in rockchip_spi_probe()
1194 if (IS_ERR_OR_NULL(rs->high_speed_state)) { in rockchip_spi_probe()
1196 rs->high_speed_state = NULL; in rockchip_spi_probe()
1200 rs->ready = devm_gpiod_get_optional(&pdev->dev, "ready", GPIOD_OUT_HIGH); in rockchip_spi_probe()
1201 if (IS_ERR(rs->ready)) { in rockchip_spi_probe()
1202 ret = dev_err_probe(&pdev->dev, PTR_ERR(rs->ready), in rockchip_spi_probe()
1217 rs->miscdev.minor = MISC_DYNAMIC_MINOR; in rockchip_spi_probe()
1218 rs->miscdev.name = misc_name; in rockchip_spi_probe()
1219 rs->miscdev.fops = &rockchip_spi_misc_fops; in rockchip_spi_probe()
1220 rs->miscdev.parent = &pdev->dev; in rockchip_spi_probe()
1222 ret = misc_register(&rs->miscdev); in rockchip_spi_probe()
1229 dev_info(rs->dev, "probed, poll=%d, rsd=%d, cs-inactive=%d, ready=%d\n", in rockchip_spi_probe()
1230 rs->poll, rs->rsd, rs->cs_inactive, rs->ready ? 1 : 0); in rockchip_spi_probe()
1243 clk_disable_unprepare(rs->sclk_in); in rockchip_spi_probe()
1245 clk_disable_unprepare(rs->spiclk); in rockchip_spi_probe()
1247 clk_disable_unprepare(rs->apb_pclk); in rockchip_spi_probe()
1257 struct rockchip_spi *rs = spi_controller_get_devdata(ctlr); in rockchip_spi_remove() local
1260 misc_deregister(&rs->miscdev); in rockchip_spi_remove()
1264 clk_disable_unprepare(rs->sclk_in); in rockchip_spi_remove()
1265 clk_disable_unprepare(rs->spiclk); in rockchip_spi_remove()
1266 clk_disable_unprepare(rs->apb_pclk); in rockchip_spi_remove()
1286 struct rockchip_spi *rs = spi_controller_get_devdata(ctlr); in rockchip_spi_runtime_suspend() local
1288 clk_disable_unprepare(rs->spiclk); in rockchip_spi_runtime_suspend()
1289 clk_disable_unprepare(rs->apb_pclk); in rockchip_spi_runtime_suspend()
1298 struct rockchip_spi *rs = spi_controller_get_devdata(ctlr); in rockchip_spi_runtime_resume() local
1300 ret = clk_prepare_enable(rs->apb_pclk); in rockchip_spi_runtime_resume()
1304 ret = clk_prepare_enable(rs->spiclk); in rockchip_spi_runtime_resume()
1306 clk_disable_unprepare(rs->apb_pclk); in rockchip_spi_runtime_resume()